<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div id="container">
    <div id="top">123453 id "top"12435</div>
    <div id="main">
        <div id="mainbox">245341 id"mainbox"245374</div>
        <div id="sidebox">245341 id"sidebox"245374</div>
    </div>
</div>
<div id="footer">2345541 id "footer"345354</div>
</body>
</html>